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Combine harvester

  • US 5,024,631 A
  • Filed: 04/23/1990
  • Issued: 06/18/1991
  • Est. Priority Date: 05/06/1989
  • Status: Expired due to Term
First Claim
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1. A combine harvester having a threshing unit housing, a tangential-flow threshing unit installed transversely to the direction of travel and comprising a drum and a concave, an inclined conveyor entering the threshing unit housing and an inspection flap arranged in the front wall of the threshing unit housing above the inclined conveyor, the concave surrounding the drum over an arc having a sieve lining and a frame supporting the latter and comprising two longitudinal strips and two arcuate end strips, wherein the sieve lining is divided into a plurality of longitudinally abutting lining sections (25, 26, 27) having respective butt joints and which are supported at the butt joints by arcuate webs (18) of the frame (14) and are designed so as to be removable from the frame (14) in the circumferential direction and are accessible and removable through the opened inspection flap (4).

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